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Curing behavior of a UV‐curable inkjet ink: Distinction between surface‐cure and deep‐cure performance

Jonas Simon, Andreas Langenscheidt
2020 Journal of Applied Polymer Science  

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Safety requirements and the need of low-migration UV inks have received increasing attention in the packaging industry. Crucial for the development and design of low-migration UV inkjet inks for migration-sensitive applications is the polymerization degree. In this study, curing-behavior of a black, high purity packaging ink (HPP-ink) was monitored using ATR-FTIR spectroscopy. UV irradiation of HPP-ink led to changes in specific absorption bands of the FTIR spectra due to crosslinking reaction
more » ... f double bonds. Changes in absorptions bands at 1,408 and 1,321 cm −1 permitted the determination of C C conversion of acrylic and vinyl double bond, independently of one another. In addition, a method was developed which allows the investigation of surface-cure and deep-cure behavior, separately.
doi:10.1002/app.49218 fatcat:okjlycuh7zeebh5sihr2rbhwce
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Jonas Simon, Andreas Langenscheidt. "Curing behavior of a UV‐curable inkjet ink: Distinction between surface‐cure and deep‐cure performance." Journal of Applied Polymer Science 137.40 (2020) 49218